Trap for waste-pipes for bowls



(No Model.)

T. J. SULLIVAN.

TRAP FOR WASTE PIPES FOR. BOWLS, &c.

ANDREW B GRAnAM Pismo-umu WASMINGTONA! t UNITED STATES PATENT EEICE.

TIMOTHY J. sULLIvAN,oE ALBANY, NEW YORK.

TRAP FOR WASTE-mps FOR BowLs, ac.

SPECIFICATION forming part of Letters Patent No.. 559,504, dated May 5, 1896,

Application filed August 15, 1895. Serial No. 559,342. (No model.)

5 New York, have invented certain new and useful Improvementsin Traps for Waste- Pipes for Bowls, &c., of which the following is aspecification.

My invention relates to traps for wastero water pipes leading from washbowls, closetbowls, bath-tubs, dac.; and it consists of the combinations of devices and elements hereinafter described, and set forth in the claims.

The objects of my invention" are to provide for waste-water pipes a trap which will have both a water seal and a gas-tight valve, and connections for securing off and down, or direct lateral waste-pipes to the valve-case of the trap, and also for securing back-air con- 2o nection-pipes to the said valve-case; also for providing a valve-case with a valve-guiding sleeve and a valve with a guiding-stem by means of which the valve will be guided in its vertical movements and be permitted to seat in a gas-tight manner on its seat; and

further to provide avalve which will be simple, strong, and light and not liable to get out of order or become fouled by surface accumulations of foreign matters and be non-corgo roding and having the quality to resist adhesion of substances which may be contained in the waste water. if,

@ther objects and advantages of the invention will appear in the following description,

3 5 and the novel features thereof will be particularly pointed out in the claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part 4o of this specification, and in which- Figure l is a sectional elevation of a vessel waste-water pipe, trap, and valve-case and its appurtenances embodying my improvements with back-air connection omitted. Fig. 2 is a sectional elevation of the trap and its appurtenances, on a smaller scale, with a backair connection secured in place and illustrating my improvements. Fig. 3 is a sectional elevation, on like scale, illustrating a modifi- 5o cation of a waste-pipe connection in connection with a trap embodying myimprovements. Fig. 4 is a view taken at line l, Fig. 1; and Fig. 5 is a view taken at line 2, Fig. 1.

`In the drawings, A is the vessel from which waste water is to be run. A is the usual connection thereof with a section of pipe B, which pipe is shown to have the usual slip-joint connection with the trap-body C. All the abovementioned parts and devices employed therewith for connection of said parts in a watertight manner are so Well known by the trade that `a particular description of the same is unnecessary.

The upper end portion of the dischargelimb C of the trap-body is provided With the pivot portion c, annular outwardly-projected flange c', and valve-seat c2, provided with the end edge of the pivot portion c. :Y

D is the valve-case, of anysuitable form and calculated to inclose the valve. The lower end of this case D is provided with the downwardly-projected member E, provided with the external screw-thread e, and is secured to the pivot portion c of the discharge-limb of the trap-body by means of the couplingnut F, usually employed for that purpose, and provided with a packing-ring e for making a tight-j oint connection. This valve-case is provided with the lateral projected member E, having an external screw-thread for use with a coupling-nut F for securing a waste-pipe connection to said lateral pro jected member E.

G is a vertically-projected member rising upwardly from the upper end of the valvecase D and integral with the same and having its bore relatively concentric with the valve-'seat c2, provided with the dischargelimb of the trap-body C. The inner side of this vertical member is provided with the screw-thread g and its outer side with the screw-thread g@ This member G serves four purposes: first, as a passage-way for communication between a back-air connection or pipe and the chamber of the valve-case; second, as a means for securing avalve-guiding sleeve in place relatively central with the valve-seat c2; third, as a means for securing a back-air connection with the valve-case,

vand lastly, as a means by which a closing-cap may be employed for closing the said-vertically-projected member G when a back-air connection is to be dispensed with.

H is a back-air connection-piece secured to the member G, projected from the upper end of the valve-case D by means of the couplingnut H', as shown in Fig. 2, and having the joint between said member G and connectionpiece H made gas and water tight by packingring h.

Il2 is a closing-cap, shown to be chambered for receiving the upwardly-.projected end portion of a valve-guiding sleeve and screwing on the outside screw-thread g' when a backair connection or pipe is to be dispensed with, as is shown in Figs. l and 3. The joint between this closing-cap is made gas and watery tight by means of a suitable packing-ring h, the same as employed for making a similar joint when the back-air connection-piece Il is secured to the same sleeve by means of the coupling-nut Il above described.

I, Fig. l, is an elbow-form connection which may be used in connection with the said valvecase of the trap when it may be advantageous to `run the waste-pipe B vertically downwardly, as shown in Fig. l.

I is a lateral straightway-form connection, which may be used also in connection with the valvecase of the trap when it is desired to run the waste-pipe laterally away from the trap,.as illustrated in Figs. 2 and 3. By means of the coupling-nut F and packing-ringf these pipe connections I or I may each be sccured to the laterally-projected member E of the valve-case in a water or gas tight manner when either of the same is selected to be employed for the purpose of connection with the waste-pipe to be carried downwardly or laterally for leading the water to a preferred place of discharge.

J is the valve-.guiding sleeve, which may be wholly or partly contained within the chamber of the valve-case l). This sleeve is securely supported in situation and position so that the axial line of its bore may be about coincident with the center of the annular valve-seat c2, and it is supported from mem ber G, provided with the upper end of the valve-case, by means of the radial arms J J integral with said sleeve and preferably connected with the outer ring portion J 2, provided with an external screw-thread j, corresponding with the internal screw-thread g and workin g in the same. This ring portion J 2 may be omitted when the arms J', radiating from the sleeve J, are projected uniformly outwardly therefrom to a distance correspondin g with the inside diameter of member Gr, as indicated .by dotted and full lines in Fig. 5, and have their ends provided with screwthreads for engaging with the said internal screw-threads g.

K is the valve, arranged within the chamber of the valve-case D and comprising the disk 7c and central stem 7d. The disk k of this as shown in Figs. 1, 2, and 3.

valve with its stem may be made of any suitable metal, alloy, or substance, yetIat present consider the metal aluminium as being preferable to any other known substance heretofore used for valves of waste-water traps, because of its quality of lightness, which permits the water iiowing through the trap-body to readily raise the valve, its quality of non-corrosion of surfaces,whereby the normal condition of surfaces may be preserved the same through its whole time of service, its quality for resisting the adherence of matters generally found in waste waters, and its quality to prevent accumulation of foreign matters, which heretofore has generally clogged the working portions of valves of other material. The stem lo of this valve is cylindrical in form and corresponds with the diameter of the bore of the sleeve J, within which it freely works without liability for lateral play. I also prefer to form the sleeve J of the metal aluminium.

Having described my invention, what l claim is- 1. In a trap for waste-pipes for bowls, &c., the combination with a valve-case provided with a downwardly-projected member, which is calculated to receive the discharge end of the trap, and with an upwardly-projected member, adapted to have connected with it a back-air pipe and provided with an internal screw-thread, the discharge end of the trap being provided with a valve-seat c2 and contained within said downwardly projected sleeve, of the vertical valve-guiding member having radial arms which allow an upward passage of water and are held by screwthreads with the internal screw-threads of the upwardly-projected member, and av-alvc provided with a centra-l stem working in said valve-guidingsleeve, substantially as and for thepurposes set forth.

2. In a trap for waste-pipes for bowls, &c., the combination with the valve-case D having with it the downwardly-projected and externally-screw-threaded member E, laterallyprojected connection member E, adapted to have connected with it an elbow of a vertical waste-pipe, and the upwardlyprojected member G provided with an internal screw-thread and adapted to be connected, at will, with a back-air pipe, of a valve-seat c2 integral with the discharge end of the trap and contained within the bore of the downwardly-projected member E, a valve-guiding sleeve J provided with radial arms, between which water may flow upwardly which are held by `screwthreads with the internal screw-threads of said sleeve G, and a valve contained within the valve-case and seating on said valve-seat c2 and provided with a central stem working in the valve-guiding sleeve, substantially as and for the purposes set forth.

TIMOTHY J. SULLIVAN.

Vtnesses ALEX. SELKIRK, A. LAMYER.

IOO 

